Question

a 50. The graph below shows the change in hormonal level in a female during a month. What is the normal time period for menstruation to last in one cycle?
(A) 8-10 days
(B) 15-16 days
(C) 1-8 days
(D) 2-8 days​

Answer 1

Answer:

(b) 15 - 16 days

probably

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